#10 Heavy Split Lock Washer Plain WIY while the partially threaded shank

while the partially threaded shank allows for a strong hold in various applications

making it suitable for outdoor use

The internal teeth of the washer bite into the mating surface

while the black oxide finish helps to protect the screw from corrosion

#10 Heavy Split Lock Washer Plain WIY while the partially threaded shank#10 Heavy Split Lock Washer Plain is a type of washer used to prevent nuts and bolts from loosening due to vibration or other forces. It is made of hardened steel and has a split design that allows it to conform to the shape of the nut or bolt. The washer has a plain finish and is suitable for use in a variety of applications. It is commonly used in automotive, construction, and machinery applications.